Refrigerating apparatus.



c. J. COLEMAN.

BEPRIGERATING APPARATUS.

APPLICATION FILED JUNE 19, 1901.

Patented Jan. 9, 1912.

I'INVENTOR Wnuzssas:

. ploymentrior such purpose or purposes of a multiple, et exhauster, or exhauster and urrnn STA E .e,

i f .cLYDn J. COLEMAN, on nnw's'onx, N.- Y;

, nnrnre'nnn'rme APPARATUS.-

Specification timer; Patent.

a lication file'a zrm e 19; .1901. Seria1No.6 5, 11( i.'

Improvements in Refrigerating Apparatus,

of which the following is a specification, ref

' erence'being'had to the accompanying drawings, forming partthereof.

My invention consists theprovision of a' gaseous et dev ce or 'e ec tor or lIlJQOtOI for "caus ng the deslred movement of the v refrigerant medium and producing the low- -pressure approachin a vacuum in the cool 111g chamber, and urther for producing compression of the refrigerant medium an the desired-pressureduring the condensing operation. A My :invention further consists in the em compressor, wherein the jets are employed successively or inseries and the ejector or injector. action is compounded.-

M'y invention further consists in the comblnatiom'with such exhauster, or, exhauster and compressor, of automatic means. con-- trolled by the condition entire-refrigerant medium in'the .cooling chamber and controling the supply of motive medium" tot'he exhauster, or exhauster and compressor.

.My invention further consistsin the geombinati'on, with the exhauster or exhauster and compressor, of a. static eolu'mnfeed,

and further offmeans' 'fo'rheatingthe motive= med1um combined with the statioc olumn feed. l

. invention further consists in means- I for 'countereurrently interchanging heat 'f rom the com re'ssed medium to the motive.

refrigerant medium,

' medium'a nd; urther inmeansfor employ- '45 ing the sainemediuin as themotive medium for the" exhauster and compressorand' as the 1 My invention further consists in the provision of automatic means for insuring the liquefaction of the refrigerant Inedium before itenters the expansion and cooling" -means, "aridlfurther in providing forjthe control'by. the liquefiedrefrigerant medium ofthe' flow-oif'therefrig'erant medium-fromthe heat abstracting means or condenser to the expansion and cooling means.

- Patente .ia Le, 1912; 7

- My mventiomfurther consists in .the'em-j ployment of Afloat actuated means for such purpose and in various improvements in the construction and combinations of parts.

paratus embodying my invention illustrated in the accompanying drawings and will thereafter point out, my invention in claims, H My IIIVGIItlOHIGlQtGS to refrigerating apparatus,

The main parts of the -apparatnsshown I will now describe the refrigerating-a1):

pressor' 1,-a condenser 2, and an expansion."

or coolingchamber 3. Thegasedu's'jet exhauster andcompressor'in the embodiment of myinvention" shown comprises a plu-. rality of ejctonor injector nozzles 14, of which three are shown, arranged to operate successively or. in series upon the refrigera'nt medlum, and arranged "with-mcorre- A sponding restricting and"directing nozzles forthe-refrigerantmedium, and this gase- I ous jet exhauster and compressor receives its motive medium from a'heatingch'amber or vapor boiler i and by. its-exhaust1ve action from the: expansion or cooling chamber 3 withdraws vaporized refrigerant medium through" a conduit "6, and the commingled 'motive medium and refrigerant. medium pass through the compressed medium c'on duit 5 and into the condenser 2. The condenser 2 is shownas a.chamber having radiati-ng ribs 16 adaptedfor air'cooling. The condensed medium from. the' condenser 2 flows into the expansion or cooling chamber 3 through the conduit 8, and means are provided in suchconduit forinsuring the liquefaction of the refrigerantmedium' shown consisting of a float valve with afloat 9 are arranged in the enlarged upper p0r-,

before it enters theexpanslon' or cooling" chamber, such. means in the construction tion of; the- ,conduit 8, such"- enlarged. upper portioneconstituting afloat chamber 1 1, and-avalve 10 connected thereto, and "cated at' the lower'end of; thecondu hiwhere" itdips into the fluid in' the expansion or cooling jch amber. v The'weig'ht'ofthe float and to some extent the pressure in the condenser-will maintain this valve'closed atfall 105 densedfl'uid'i'n the conduit to raise the fl j times except when there is sufiicient conand' 0 en' the valve, and this construction wil l c ectually prevent the passageof gaseer'ant medium are the same,

T a correspondingly coiled downwardly exthe. comp'ressed fluid conduit pre mOtIVB medium flowing into the vapor boiler ous refrigerant medium into the expanding or cooling chamber. Further the float chamber 11 is located outside of the expansion or coolingchamber and at a suflicient distance 5 therefrom to be located outside the refrigerator or space to be cooled. Further the valve 10 controlled by the float 9, is located in the expansion or cooling chamber, so that all the cooling efl'ect of expansion takes place within the expansion or cooling chamber. Further by reason of the fact that the conduit 8 dips into the fluid in the expansion I or cooling chamber and that the valve 10 is immersed in the fluid in the expansion or cooling chamber, the valve or expansion device is in thermal conductive adjacency and is in fact in contact with a body of the refrigerant medium capable of preventing freezing or congelation at the point of ex-' pansion. 1 The supply of motive medium for the gaseous jet. exhauster and compressor is in .the construct on fshown drawn from the condenser 2 and maintained by. a static colvention the motive medium and the refrigand the means shown are adapted for the use as the motive .and refrigerant medium of water or sullower pressures'than ammonia;

The static columnmaintained in the v conduits-1'2, which is isv wn as extending at its upper end from-the float chamber 11 at a point 'below the fluid level requisite to open the condensed 10, so that the static column will ore anyof such medium can enter the expansion and cooling chamber 3; The static column conduit enters ,the heating chamber or vapor-boiler 4;, having a return bend u wardly extending portion shown as in t e the cooler portions thereof is-surrounded tending part of'the compressed medium can-- duit 5, the latterconduit extending from the gaseous jet exhauster and compressor 1 to the condenser 2, and through thesecoiled ortions of the conduits the -mediums are edcountercurrently and in thermal 'conheated compressed medium-flowing through eats the or heating chamber.

The heati g means shown comprises a I "6:0. heating chamberor va or boiler 4, heated by agas flame from the tive medium from. the istatic'column con \i dui't 12 enters the heating chamberat its lower portion and .theheating chamberis divided horizontally near the upper end umn feed and in this embodiment of my infuric ether or ethyl chlorid or alcohol or' carbon bisulfi'd or. other medium requiring medium supply valvebe sup-. bed with fluid refrigerant medium beductive proximity to each-other, and. the

pivoted float 20. The steam or vapor outlet is located above this partition, and the outlet conduit 21 leads separately into each one of the three jet nozzles 15. The function of the float and valve 20, 19, is to prevent the passage of liquefied medium to the jet nozzles, the float 20 operating to close the valve 19 before the fluid level in the heating chamber reaches the partition 18.

For the purpose of automatically controlling the heating means so as to regulate the supply of motive'medium to the exhauster andcompressor and therebyregulate the exhausting action of the exhauster and compressor in accordance with the demands for refrigerating action thecooling chamber, I provide a thermostat 22 shown as a bimetallic strip adjusted so as to come in contact with an electric terminal 23, and thereby close a circuit from the bat tery 24- through an electromagnetic valve 25 inter used in the supply pipe 26 of the burner 1 and to close such a circuit and actuate such valve when the temperature of the cooling chamber rises above that selected as affording the desired degree of refrigerationj It is of course evident that other than electrical means can be employed to effect this control. By this means the condition of the refrigerant medium in the cooling chamber 3 controls the heating means of the heating'chamber 4 and thereby regulates the supply of motive medium to the exhauster and'compressor. The conduit 6 from the cooling chamber 3 to the exhauster compressor is shown as provided with a and flap check: valve '7 therein which closes against retrograde movement of the refrigerant medium sothat when the automatic means diminishes or discontinues the action of the exhauster and compressor to such an extent that it will not exhaust the refrigerant medium through the conduit 6, the check valve 7 will closeand pressure through such conduit.

- It is evident thativarious modifications maybe made in the construction above shown and above particularly described within the spirit-and scope of my mvention. desire'to secure by Let What I claim and ters Patent is:- y A V 1 1 A refri erating' apparatus comprising a cooling c therefrom above. -t he1 fluid: level; therein,

prevent back V amber,-.a conduit extending means :for generating-7a power 'I'nedium, a

gaseous jetexhau'ster. entering the conduit and connected to the generating means so as 'to receive static column feed conduit communicating with and leading-to the generating means.

2. A refrigerating a cooling chamber, a'condenser, a conduit apparatus" comprisingt power medium therefrom,',and 'a extending from. the'coolingchamber, above the fluid level therein, means for generating a power medium, a gaseous'jet exhauster entering the conduit and connected to the generating means so as to receive power medium therefrom, and a static column feed conduit communicating with and leading to the generating means.

3. A refrigerating apparatus comprising a cooling chamber, a conduit leading therefrom, means for generating a power melium, a compound gaseous jet device leading from the generating means and successively arranged in the conduit, and a static :olumn feed conduit communicating with the condenser and leading to the generating means and arranged to .supply medium thereto.

4. A refrigerating apparatus comprising a cooling chamber, a. condenser, a conduit extending from the cooling chamber to the :ondenser, means for, heating a power me- :lium, a compound gaseous jet device leading from the generating means and ar-' ranged in the conduit and a static column :onduit communicating with the condenser and leading to the power,medium heating rneans and supplying medium thereto.

5. In a refrigerating apparatus, in comoination, a cooling chamber, a conduit leading therefrom, a gaseous jet exhauster for.

expanding the medium in the cooling cham oer and withdrawing the same therefrom, means for supplying motive medium to the :xhauster including motive medium genertting means, a static column feed conduit zommunicating with the condenser and leading to the generating means, and autonatic means controlled by the condition of he refrigerant 7 medium in the cooling :hamber and controlling the supply of mo- ;ive means .to the exhauster.

6. Ina refrigerating apparatus, in com )ination, a cooling chamber, a condenser, a gaseous jet device for expanding the melium in the cooling chamber and withdraw- ,ng the same therefrom and forcing the same. into the condenser, means for supplyvng motive medium to the gaseous jet device, a static column feed conduit communiratmg with the condenser and leading to :he generating means, and automatic means :ontrolled by the condition of the refriger mt medium in the cooling chamber and :ontrolling the supply of motive medium to :he gaseous jet device.

7. In a refrigerating apparatus, in com )ination, a cooling chamber, a conduit leadng thereto, a' gaseous jet-exhauster for ex- )anding themedium in the cooling cham- )er and withdrawing the same therefrom, neans for generating the motive medium For the exhauster, a static column feed conluit communicating with the first conduit 1nd leading to the generating means, and

automatic means cont-rolled by the condition of the refrigerant medium in the cooling chamber and controlling the supply of motive medium to the exhauster.

8.- In a refrigerating apparatus, in combination, a cooling chamber, a condenser, a"

gaseous jet exhauster and compressor for expanding the medium'in the cooling chamber and withdrawing the same therefrom, and forcing the same into the condenser, means for generating the motive medium for the exhauster and compressor, a static column feed conduit communicating with the condenser and leading to the generating means, and automatic'means controlled by the condition of the refrigerant medium in the cooling chamber and controlling the supply of motive medium to the exhauster andcompressor. 9. In a refrigerating apparatus, in combination, acooling chamber, a conduit leading thereto, a gaseous jet exhauster for expanding the medium in the cooling chamber and withdrawing the same therefrom, means for generating the motive medium for the exhauster, a static column feed conduit communicating with the first conduit and leading to the generating means, and automatic means controlled by the condltion of the refrigerant medium in the cooling chamber and controlling the generating bination, a cooling chamber, a condenser, a

gaseous jet exhauster and compressor for expanding the medium in the cooling chamber and 'withdraw-ing the same therefrom and forcing the same into the condenser, a static column conduit-connected to the condenser and arrangedto feed motive power generating medium therefrom to the motive power medium generating means'and to the exhauster and compressor, and means for generating the motive medium in its move-- ment from ,the condenser to the exhauster and compressor and controlled by' the heating means. I. j

12. In a refrigerating apparatus, in combination, a cooling chamber, a condenser, a

gaseous jet exhauster and compressor for expanding the medium in the cooling chami ao - a cooling chamber,

I her and withdrawing the same therefrom between, the cooling ranged in thermal conductive proximity to,

and forcing the same into the condenser, a static column conduit connected to the condenser and arranged to feed motive power generating medium from the condensertothe motive power medium generating means and to the exhauster and compressor, means for generating the motive medium in its movement from the condenser to. the exhauster and compressor, and automatic means controlled by the condition of the refrigerant medium in the cooling chamber and controlling the motive medium generating means.

13. A refrigerating apparatus com rising a cooling chamber, a gaseous jet ex auster for expanding the medium in the cooling chamber and withdrawing the same therefrom, a conduit from the exhauster to the cooling chamber, means for generating a power medium and supplying the same to the exhauster and a medium supplying conduit from the cooling chamber to the generv ating means, the conduit from the exhauster and the medium supplying conduit for the generating means being arrangedin thermal conductlve proximity to one another and so arranged that the mediums will countercurr'ently therethrou'gh.

14. A refrigerating apparatus comprising a cooling chamber, a condenser, aconduit chamber and the condenser, a gaseous jet exhauster and compressor for expanding the medium in the cooling ghamber and withdrawing the same thererom denser, a conduit for the medium from the exhauster and compressor to the condenser, means for generating a power medium and supplying the same to the exhauster and compressor and a conduit from. the condenser for supplying a medium*' to the eneratmg means, the conduit from the ex auster and com ressor and the medium supplying conduit or the generating means being arone another so arranged that the mediums Wlll be conveyed countercurrently therethrough. r

15. A refrigerating apparatus comprising a aseous jet exhauster and compressor, a con uit from the cooling chamber to the exhauster and compressor,

a condenser, a compressed medium conduit from the'exhauster and compressor to the condenser, means for generating a power medlum and supplying the same to the exhauster and com ressor and a medium supplying conduit rom the condenser to the generating ,means, the compressed medium conduit and the medium supplying conduit for'the generating means being arranged in thermal conductive proximity to one another so arranged that the mediums will be con- GE-Veyed countercurrently therethrough;

be conveyedbeing arranged in thermal and forcing the same into the con-s 16. In a refrigerating apparatus, in

bination, a coollng chamber, a gaseous jet exhauster and compressor, aconduit'from the cooling chamber to'the exhauster and compressor, a condenser, a compressed me: dium condult from theexhauster and compressor toithe condenser, means for generat- 1' mg the motive medium before it enters the exhauster and compressor, a static column feed conduit from the condenser to the gention' of the feed conduit bein arranged in thermal conductive proximity ooneanother so as to convey the mediums countercurrently therethrough.

17..In a refrigerating apparatuafin co'mbination, a cooling chamber, a gaseous je't .exhauster' and compressor a conduit from the coolingchamber to the exhauster and compressor, a condenser, a compressed me-- dium conduit-from the exhauster and compressor to the condenser, means for generating the motive medium before it enters the exhauster and compressor, and a medium feed conduit from the condenser to the generating means, the com ressed medium conduit and the medipm eed conduit conductive proximity to one another so as to convey the medium countercurrently tlierethrough, and

automatic means controlled by the condition of the refrigerant medium in the cooling chamber and controlling the means for generating the motive medium. '18. In a refrigerating apparatus, in com-v bination, a coollng chamber, a gaseous jet exhauster'and compressor, a conduit from the cooling chamber to the 'exhauster and compressor, a condenser, a com ressed medium conduit from exhauster an compressor to the condenser, means for generating the motive medium before it enters the exhauster and compressor, astatic column feed cpnduitfrom the condenser to the generatmg means, having a return bend upwardly extending portlon in proximity to the generating means, and the compressed medium condult and the return bend portion of the feed conduit being arranged in thermalcon- I duct-ive proximity to one another so as to.

convey the mediums countercurre'ntly therethrough, and automatic means-controlledby the condition of the refrigerant medium 1n the cooling chamber and controlling the means for generating themotive'medlum.

19. A refrigerating apparatus comprlslng .a low pressure cooling chamber, a high pressure condenser, means for expanding the re frigerant medium in the cooling chamber and withdrawing the same from the cooling chamber and compressing the refrigerant f dium and forcing thesame into'the condenser, and an expansion device in the 0001- ing chamber and automatically operatable to control the fiow of refrigerant medium from the high pressure condenserto the low a 5 pressure cooling chamber.-

ing chamber and automatically operatable to -15 the high pressure condenser to the low prescontrol the flow of refrigerant'medium from sure cooling chamber. a v

21. In a refrigerating apparatus, incombination, means for compressing a-refrigerant medlum, a condenser, a cooling cham- 1 her, a conduit from the condenserto the. cooling. chamber havlng .a :float chamber of June, 1901.

therein in roximity to the condenser, such conduit bemg constructed to dip into refrigerant fluid in the cooling chamber, a float in the float chamber, and a valve in the cooling chamber controlled by the float;

22. A refrigerating apparatus comprising a cooling chamber,'a condenser, a conduit leading from the condenser t0 the cooling chamber, a gaseous jetexhauster for expanding the medium in the-cooling chamher and withdrawing-it therefrom and forcing motive power medium into the con-. denser, a heating chamber for generating motive power medium and automatic means for controlling the passage of medium from the heating chamber to the exhauster.

' Signed at New York, N. Y., this 13th day CLYDE J. COLEMAN.

Witnesses: HENRY D. WTLIJZAMS, HERBE T H. GIBBS. 

